Definitions for "Space Blanket"
a small, thin blanket that will keep you warm in case you get stuck on the trail
A waterproof emergency blanket that is made with Mylar. Space blankets are waterproof and conserve warmth by reflecting body heat back to the person it covers.
A very thin silvery reflective sheet which traps and reflects body heat. Use to treat hypothermia victims.
a remarkable and featherlight addition to your daypack that can not only save you but can also make being lost or stranded considerably more comfortable